Illinois' Premier Contractor Services Provider

Exams Prep, Liens, Public Adjusting,
Appraisals, and more!

Since 2010, we've helped THOUSANDS of Contractors pass their exams on the 1st try and help to launch and operate a business of their dreams! Join us TODAY! Our exam prep and skills courses can be offered both LIVE and ONLINE.

Register For A Class 📞 (773) 635-0099
✓ Live & Online Classes ✓ Since 2010 ✓ Thousands Licensed ✓ Near O'Hare · Rosemont, IL
What We Teach

Illinois' Premier Contractor Exam Preparation

Call us to register for your course and exam before the DEADLINE!

Most Popular 🏠
ILLINOIS ROOFING EXAM

Need help passing the exam to receive your Illinois Roofing License quickly and affordably? Call us ASAP to register for the next exam. The course will be held May 11–May 13, 2026. The exam will be held May 20. Classes are held in Rosemont, a few minutes from O'Hare Airport.

Next Class
May 11–13, 2026
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High Earning Potential ⚖️
ILLINOIS PUBLIC ADJUSTER EXAM

Illinois contractors can take control of repairs, negotiate directly with insurance companies, be paid on time, and add more money to their bottom line by becoming a licensed Public Adjuster. Our next class is April 13 thru April 15, 2026.

Next Class
April 13–15, 2026
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Limited Seats 🧱
CHICAGO MASONRY EXAM

Looking to pass the Chicago Masonry and Concrete exam? We provide everything you need in our prep course! The class will be held May 26–27, 2026. The exam is June 3. Spaces are limited. Call to reserve a spot!

Next Class
May 26–27, 2026
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Lien Advisory Services

Contractors Deserve to Be Paid for Their Work.

Whether it's $5,000 or $200,000, we have helped thousands of honest and hard-working contractors collect unpaid bills through our Lien Advisory division. Give us the necessary information, and we'll take care of the rest at very competitive rates compared to an attorney!

⚠️ Don't wait: General contractors have 120 days to file — subcontractors have only 90 days, so don't delay!
Call For Lien Help Today →
Recover What You're Owed

File a Lien. Get Paid.

For more than a decade, Contractors Network and Training Center has supported hundreds of contractors to recover lost income for the fraction of the cost an attorney will charge.

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We handle all paperwork and filing for you
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No attorney needed at this stage
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General contractors: 120 days · Subcontractors: 90 days
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Whether it's $5,000 or $100,000 — we've handled every possibility
Learn About Lien Services →
What Our Students Say

What Do Our Past Students and Customers Say?

Other people's recommendations carry a lot more weight!

★★★★★

"It was definitely the best thing I could have done. The class really prepares you for the test. If it wasn't for this class I would have not passed the test. Such a great investment! I passed the test with an 85% and couldn't be happier and grateful for all the guidance and help that this class gave me!"

Monika Czaja
FIVE Stars for our Chicago Roofing School
★★★★★

"Excellent schooling! I passed my exam. It would have been extremely hard without the help."

Brock Boss
FIVE Stars for Illinois Public Adjuster School
★★★★★

"Sometimes the hardest part of a construction project is getting paid….. Sincerely want to thank CLA Chicago for helping me resolve all 'money' problems."

Deco Rama
FIVE Stars for our Lien Advisory Services
What Our Students Say

Real Reviews from Real Contractors

5.0 stars across 138+ Google reviews

Get Licensed and Start Your Journey!

Call us to register for your course and exam before the deadline. Classes fill fast.

Register For A Class 📞 (773) 635-0099

Illinois Roofing Exam Illinois Public Adjuster License Chicago Masonry Exam Xactimate® Training